a watchdog of public morals的用法和样例：
- The debate aroused not a speck of public interest.
- Registered as a watchdog of the process system example, the realization of a program of the watchdog service.
- As far as I'm concerned, we should pay great attention to public rules and regulations and enhance our sense of public morals.
- He is endued with a spirit of public service.
- Films like this are a danger to public morals.